Home / 12,227.20-16,873.51-6,638.20

Finding the Fourth Proportional to 12,227.20, 16,873.51 and 6,638.20

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Solution

The fourth proportional to 12,227.20, 16,873.51 and 6,638.20 is: 9,160.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,227.20 : 16,873.51 = 6,638.20 : x
  2. Step 2: Convert to fraction form
    12,227.20/16,873.51 = 6,638.20/x
  3. Step 3: Cross multiply
    12,227.20x = 16,873.51 × 6,638.20
  4. Step 4: Simplify right side
    12,227.20x = 112,009,734.08
  5. Step 5: Solve for x
    x = 112,009,734.08/12,227.20
  6. Step 6: Final answer
    x = 9,160.70

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.